Which answer matches this clue: the 2006 match-fixing scandal that saw Juventus stripped of titles and relegated to Serie B?

• A Totonero
• B Scommessopoli
• C Calciopoli ✓
• D Tangentopoli

Calciopoli involved intercepted telephone calls between club executives and referee designators; Juventus, Milan, Fiorentina, and Lazio were all penalised.